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| author | Jules Irenge <jbi.octave@gmail.com> | 2020-01-20 22:41:26 +0000 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-02-20 16:00:45 -0800 |
| commit | e1e9bdc00ade6651c11bf5628ee9d313ee6089ac (patch) | |
| tree | be050164c819df4c1f6bd21168ed179a8b6b0838 /kernel/rcu | |
| parent | fcb7381265e6cceb1d54283878d145db52b9d9d7 (diff) | |
| download | linux-e1e9bdc00ade6651c11bf5628ee9d313ee6089ac.tar.bz2 | |
rcu: Add missing annotation for exit_tasks_rcu_start()
Sparse reports a warning at exit_tasks_rcu_start(void)
|warning: context imbalance in exit_tasks_rcu_start() - wrong count at exit
To fix this, this commit adds an __acquires(&tasks_rcu_exit_srcu).
Given that exit_tasks_rcu_start() does actually call __srcu_read_lock(),
this not only fixes the warning but also improves on the readability of
the code.
Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/update.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c index a27df761b149..a04fe54bc4ab 100644 --- a/kernel/rcu/update.c +++ b/kernel/rcu/update.c @@ -801,7 +801,7 @@ static int __init rcu_spawn_tasks_kthread(void) core_initcall(rcu_spawn_tasks_kthread); /* Do the srcu_read_lock() for the above synchronize_srcu(). */ -void exit_tasks_rcu_start(void) +void exit_tasks_rcu_start(void) __acquires(&tasks_rcu_exit_srcu) { preempt_disable(); current->rcu_tasks_idx = __srcu_read_lock(&tasks_rcu_exit_srcu); |